| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Phase-field Simulation of Microstructure Evolution during Solidification in Metal Additive Manufacturing |
| Author(s) |
Jiwon Park, Chang-Seok Oh |
| On-Site Speaker (Planned) |
Jiwon Park |
| Abstract Scope |
When a heat source passes over the build surface during additive manufacturing, the materials undergo rapid solidification that results unique microstructures and properties. Even in a single beam path with straight trajectory, solidification velocity and cooling rate vary with the relative position to the heat source which set different solidification conditions. In this research 3-dimensional microstructure evolution of FCC metal during rapid solidification in additive manufacturing is studied with phase-field modeling. Different solidification conditions extracted from thermal computation were taken to simulate microstructure evolution when the build metal is grown from pre-built layers in [100], [110], and [111] normal directions. The results are also compared with randomly nucleated microstructures. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |